Proper roof ventilation is essential for protecting your home, yet it’s often misunderstood or overlooked. Soffit and fascia vents work together to keep air moving through your attic, helping regulate temperature and control moisture before it causes damage. While soffit vents bring fresh air into the attic, they cannot work effectively on their own. That incoming air needs a clear escape route through exhaust vents near the roof’s peak, such as ridge or gable vents, to prevent heat and moisture from becoming trapped. Fascia boards, although typically solid, also play a crucial role by supporting gutters and sealing the roof’s edge. When ventilation is poor, the fascia can deteriorate, leading to gaps that allow moisture, pests, and mold to enter the attic and disrupt proper airflow. Another common misconception is that roof ventilation only matters in hot climates. In reality, it’s just as critical in cold regions, where warm indoor air can rise, condense in the attic, and cause moisture buildup that damages insulation and wood framing. A well-designed soffit and fascia ventilation system works year-round, keeping your roof dry, stable, and durable while preventing long-term structural issues that can be costly to repair.
source: https://gobighorn.com/clearing-up-the-top-3-misconceptions-about-soffit-and-fascia-ventilation/
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